PHP查找文本模式

Question

How can I find a 3 character text pattern in a string of: an upper or lowercase alphabetic character (a to z or A to Z) followed by a numeric character (0 to 9) followed by an upper or lowercase alphabetic character (a to z or A to Z)

for example x4A or A3j or A7X or h1k

Answer 1

我认为你应该使用

/[a-zA-Z][0-9][a-zA-Z]/

Answer 2

try :

[a-zA-Z]{1}[0-9][a-zA-Z]{1}

demo : http://regexr.com?3199m

Answer 3

$matches = array();
preg_match('/[a-z]\d[a-z]/i', $my_string, $matches);
// now $matches contains all you want

Answer 4

Try this:

preg_match_all('/[A-Za-z]{1}[0-9]{1}[A-Za-z]{1}/',$string,$matches);

$matches now contains all your matches.